3.2 Detail Extraction: Numbers, Names, Lists & Exceptions in Technical Passages
Key Takeaways
- Nearly every sample reading question in FCTC's study guide targets a single stated detail rather than the main idea.
- Sort details into numbers and units, people and authority, places, time, lists, required vs. optional, and exceptions.
- Pair every number with its noun ('earring: max 2 mm'); distractors move a correct number onto the wrong item or nudge its value.
- Build a shorthand index at the top of each packet essay and self-test after the five-minute warning.
- If an essay's figure differs from a reference value you know (such as 18% versus OSHA's 19.5% oxygen limit), answer with the essay's figure.
3.2 Detail Extraction: Numbers, Names, Lists & Exceptions in Technical Passages
Look at the sample reading questions in FCTC's free study guide and a pattern jumps out. Nearly every one targets a single stated detail:
- a number: 500 psi, 18 percent, 2 mm
- a count: four hazardous atmospheres
- a month: May
- a location: the right sleeve
- a person with authority: the Fire Chief
- a procedure: an appeal filed in writing
Main-idea questions are rare. This section trains the skill that earns most reading points: pulling exact details out of dense technical text and holding them long enough to answer.
The Seven Detail Categories
Almost every testable detail in a fire-service passage falls into one of these categories. Sort facts into them as you read.
| Category | What it looks like in a passage | Typical question stem |
|---|---|---|
| Numbers and units | "not to exceed 2 mm," "above 500 psi," "15–30 seconds" | "What is the maximum…?" / "At what pressure…?" |
| People and authority | "the Deputy Fire Chief is empowered to…," "authorized by the Fire Chief" | "Who authorizes…?" / "To whom is the appeal made?" |
| Places and positions | "right sleeve," "below-grade locations," "in the cab" | "Where is… worn/kept/located?" |
| Time and frequency | "updated annually in May," "within 12 months," "daily before 0900" | "How often…?" / "In which month…?" |
| Lists and counts | "four common hazardous atmospheres: …" | "How many…?" / "Which is included…?" / "All of the above" |
| Required vs. optional | shall, must vs. may, should, discouraged | "What must…?" / "What is optional?" |
| Exceptions and conditions | "unless," "except," "only when," "provided that" | "Which does NOT…?" / "Under what condition…?" |
Pair every number with its noun. "2 mm" on its own is useless. "Earring: one stud per ear, max 2 mm" is an answer. Distractors are built by moving a correct number onto the wrong noun, or by nudging the number (1, 2, 3, or 4 mm).
Encoding Techniques That Work Without Looking Back
- Shorthand rewrite. FCTC allows rewriting parts of the essay on the packet. At the top of each essay, build a mini index such as: Earring 2 mm · Patch R sleeve · Update May · Appeal → writing → Fire Chief. Writing it once is itself a memory rehearsal.
- Chunking. Group related numbers into one chain. "PASS: 500 psi, 15–30 sec, can't turn off" is easier to hold than three separate facts.
- Who-What-When-Where-How-many grid. For policy essays, answer those five questions for each paragraph in the margin.
- Contrast pairs. Link easily confused items: paramedic patch → right sleeve on jackets AND on fatigue shirts (silkscreen). Questions love the item that has two versions.
- Last-five-minutes self-test. After the five-minute warning, cover the text and recite your index. Re-read only what you could not recall.
- Answer packet questions early in the booklet. Your memory of the essays fades while you work other sections. Many candidates answer the pre-test essay items first.
Practice Passage (Original)
Read this passage, cover it, then answer the questions that follow from memory.
Monthly Hydrant Inspection. Each engine company inspects the hydrants in its first-due area during the first week of every month. Two members complete each inspection: one operates the hydrant while the other records results on Form H-7. The hydrant is flushed for at least one minute or until the water runs clear, whichever is longer. A static pressure below 20 psi is reported to the Water Department the same day. Caps that are missing or cross-threaded are replaced from the apparatus spare kit, except for 4½-inch steamer caps, which are ordered through the Fire Prevention Bureau. Inspections are not performed when the temperature is below 32°F. Completed forms are sent to the Battalion Chief by the 10th of the month.
Detail inventory you should have captured:
| Category | Detail |
|---|---|
| Time | first week of every month; forms due by the 10th |
| People | two members; the Water Department gets low-pressure reports; the Battalion Chief receives forms |
| Numbers | at least 1 minute of flushing or until clear, whichever is longer; static pressure below 20 psi; no inspections below 32°F |
| Document | Form H-7 |
| Exception | 4½-inch steamer caps come through the Fire Prevention Bureau, not the spare kit |
Model questions and how the distractors are built:
- How long is a hydrant flushed? The correct answer is "at least one minute or until clear, whichever is longer." A distractor like "exactly one minute" drops the condition.
- Who orders a replacement steamer cap? The correct answer is the Fire Prevention Bureau. The spare kit is the rule this exception overrides, so it is the most tempting wrong choice.
- A static pressure of 18 psi is found. What happens? It is reported to the Water Department the same day. A distractor may name the Battalion Chief, who receives the forms, not the pressure report.
- Which is NOT part of the procedure? Look for an invented step, such as testing on a 30°F morning.
Numbers You May Meet in Fire-Service Reading (Recognition Only)
Recognizing common reference values helps you read faster and spot a figure that "looks wrong." It never replaces the passage. If an essay prints a different figure, answer with the essay's figure.
| Reference value | Commonly cited figure | Source or context |
|---|---|---|
| Oxygen in normal air | about 20.9% | Atmospheric composition |
| Oxygen-deficient atmosphere | below 19.5% | OSHA respiratory protection standard (29 CFR 1910.134) |
| Carbon monoxide (CO) exposure limits | 50 ppm (OSHA 8-hour limit); 35 ppm (NIOSH recommended limit) | OSHA / NIOSH |
| CO immediately dangerous to life or health | 1,200 ppm | NIOSH |
| Water weight | about 8.34 lb per gallon | Physical constant |
| Gallons in one cubic foot | about 7.48 | Physical constant |
| Pressure from a column of water | 0.433 psi per vertical foot; 1 psi = 2.31 ft | FCTC study guide (fluid dynamics) |
| SCBA cylinder ratings | commonly 2,216, 4,500, or 5,500 psi | Manufacturer ratings |
Five Detail-Question Traps
- Right number, wrong noun: the 20 psi threshold becomes the "minimum flushing pressure."
- Dropped qualifier: "at least" or "whichever is longer" disappears from the choice.
- Swapped authority: the person who receives forms becomes the person who orders parts.
- Rule vs. exception confusion: the general rule is offered as the answer to an exception question.
- Real-world override: a choice that matches textbook practice but not the passage.
A passage states: 'The hydrant is flushed for at least one minute or until the water runs clear, whichever is longer.' The water runs clear after 40 seconds. How long must flushing continue?
A passage states: 'Missing caps are replaced from the apparatus spare kit, except for 4½-inch steamer caps, which are ordered through the Fire Prevention Bureau.' A crew finds a missing 4½-inch steamer cap. What does the passage require?
An FCTC sample essay states that the body increases its respiratory rate when oxygen falls below 18 percent. A question asks for that threshold, with choices of 18, 19.5, 20, and 21 percent. Which answer should a candidate select?
Which pre-test note would best help a candidate recall a policy line that says members 'may wear one stud earring per ear not to exceed 2 mm'?